No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search


To have a better experience, please upgrade your IE browser.


Configuration Guide - Reliability

S1720, S2700, S5700, and S6720 V200R010C00

This document describes the configuration of BFD, DLDP, VRRP, SmartLink, CFM, EFM, Y.1731 and MAC swap loopback to ensure reliability on the device.

Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Enabling the MAC Swap Loopback Function

Enabling the MAC Swap Loopback Function


A loopback test causes network performance to deteriorate. If a large number of test packets are sent, bandwidth of other services is occupied. To ensure satisfactory network performance, enable the MAC swap loopback function only when the loopback test begins and disable it immediately after the loopback test is complete.


  1. Run:


    The system view is displayed.

  2. Run:

    interface interface-type interface-number

    The interface view is displayed.

    MAC swap loopback tests cannot be performed on Eth-Trunk interfaces or their member interfaces.

  3. Run:

    loopback swap-mac start

    The MAC swap loopback function is enabled.

    The loopback swap-mac start command is a one-time command and is not saved in the configuration file.

    To ensure service provisioning on the interface, run the loopback swap-mac stop command to disable the MAC swap loopback function immediately after the test is complete.

Updated: 2019-12-28

Document ID: EDOC1000141941

Views: 110717

Downloads: 529

Average rating:
This Document Applies to these Products

Related Version

Related Documents

Previous Next